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www.dell.com | support.dell.com Command History Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module debug spanning-tree Enable debugging of the spanning tree protocol and view information on the protocol. Syntax debug spanning-tree {stp-id [all | bpdu | events | exceptions] | protocol} To disable debugging, use the no debug spanning-tree command. Parameters stp-id protocol all bpdu events Enter zero (0). The switch supports one Spanning Tree group with a group ID of 0. Enter the keyword for the type of STP to debug, either mstp, pvst, or rstp. (OPTIONAL) Enter the keyword all to debug all spanning tree operations. (OPTIONAL) Enter the keyword bpdu to debug Bridge Protocol Data Units. (OPTIONAL) Enter the keyword events to debug STP events. Command Modes EXEC Privilege Command History Usage Information Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module When you enable debug spanning-tree bpdu for multiple interfaces, the software only sends information on BPDUs for the last interface specified. Related Commands portfast bpdufilter default Enters SPANNING TREE mode on the switch. description Enter a description of the spanning tree. Syntax description {description} To remove the description from the Spanning Tree, use the no description {description} command. Parameters description Enter a description to identify the Spanning Tree (80 characters maximum). Defaults none Command Modes SPANNING TREE (The prompt is "conf-stp".) Command History Related Commands Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module portfast bpdufilter default Enters SPANNING TREE mode on the switch. 622 | Spanning Tree Protocol (STP)

Section	Page
About this Guide	9
Objectives	9
Audience	9
Conventions	9
Information Symbols	10
Related Documents	10
CLI Basics	11
Accessing the Command Line	11
Multiple Configuration Users	12
Navigating the Command Line Interface	12
Obtaining Help	13
Using the Keyword no	15
Filtering show Commands	15
Displaying All Output	16
Filtering Command Output Multiple Times	16
Command Modes	16
EXEC Mode	16
EXEC Privilege Mode	17
CONFIGURATION Mode	17
INTERFACE Mode	17
LINE Mode	18
MAC ACCESS LIST Mode	18
IP ACCESS LIST Mode	18
ROUTE-MAP Mode	18
PREFIX-LIST Mode	19
SPANNING TREE Mode	19
Per-VLAN SPANNING TREE Plus Mode	19
RAPID SPANNING TREE Mode	19
MULTIPLE SPANNING TREE Mode	20
PROTOCOL GVRP Mode	20
ROUTER OSPF Mode	20
ROUTER RIP Mode	20
File Management	21
Overview	21
Basic File Management Commands	21
Control and Monitoring	37
Commands	37
Important Points to Remember	67
u-Boot	81
Overview	81
Commands	81
Access Control Lists (ACL)	91
Overview	91
Commands Common to all ACL Types	91
Common IP ACL Commands	94
Standard IP ACL Commands	98
Extended IP ACL Commands	102
Common MAC Access List Commands	117
Standard MAC ACL Commands	120
Extended MAC ACL Commands	123
IP Prefix List Commands	127
Route Map Commands	132
Bare Metal Provisioning	143
Overview	143
Commands	143
Content Addressable Memory (CAM)	147
Overview	147
CAM Profile Commands	147
Important Points to Remember	147
Data Center Bridging	153
Overview	153
DCB Command	153
PFC Commands	153
ETS Commands	154
DCBX Commands	154
Dynamic Host Configuration Protocol (DHCP)	187
Overview	187
Commands to Configure the System to be a DHCP Server	187
Commands to Configure the System to be a DHCP Client	194
Other Commands supported by DHCP Client	195
Commands to Configure Secure DHCP	198
FIP Snooping	205
Overview	205
GARP VLAN Registration (GVRP)	217
Commands	217
Important Points to Remember	218
Internet Group Management Protocol (IGMP)	227
IGMP Snooping Commands	227
Important Points to Remember for IGMP Snooping	227
Important Points to Remember for IGMP Querier	228
Interfaces	235
Overview	235
Basic Interface Commands	235
Port Channel Commands	277
Time Domain Reflectometer (TDR)	284
Important Points to Remember	284
UDP Broadcast	286
Important Points to Remember	286
IPv4 Routing	289
Commands	289
iSCSI Optimization	323
Overview	323
Link Aggregation Control Protocol (LACP)	331
Overview	331
Commands	331
Layer 2	337
Overview	337
MAC Addressing Commands	337
Virtual LAN (VLAN) Commands	347
Link Layer Discovery Protocol (LLDP)	355
Overview	355
Commands	355
LLDP-MED Commands	363
Multiple Spanning Tree Protocol (MSTP)	371
Overview	371
Commands	371
Open Shortest Path First (OSPFv2)	385
Overview	385
OSPFv2 Commands	385
Port Monitoring	433
Overview	433
Commands	433
Important Points to Remember	433
Private VLAN (PVLAN)	439
Commands	439
Private VLAN Concepts	440
Per-VLAN Spanning Tree Plus (PVST+)	449
Overview	449
Commands	449
Quality of Service (QoS)	461
Overview	461
Global Configuration Commands	461
Per-Port QoS Commands	462
Policy-Based QoS Commands	467
Routing Information Protocol (RIP)	491
Overview	491
Commands	491
Remote Monitoring (RMON)	507
Overview	507
Commands	507
Rapid Spanning Tree Protocol (RSTP)	519
Overview	519
Commands	519
Security	531
Commands	531
AAA Accounting Commands	531
Authorization and Privilege Commands	534
Authentication and Password Commands	537
RADIUS Commands	548
TACACS+ Commands	552
SSH Server and SCP Commands	555
Secure DHCP Commands	566
sFlow	571
Overview	571
Important Points to Remember	571
Commands	572
Simple Network Management Protocol (SNMP) and Syslog	579
Overview	579
SNMP Commands	579
Important Points to Remember	580
Syslog Commands	594
Storm Control	605
Overview	605
Commands	605
Important Points to Remember	605
Stacking Commands	611
Overview	611
Commands	611
Spanning Tree Protocol (STP)	621
Overview	621
System Time and Date	631
Overview	631
Commands	631
Uplink Failure Detection (UFD)	645
Overview	645
Commands	645
VLAN Stacking	655
Overview	655
Important Points to Remember	655
Virtual Router Redundancy Protocol (VRRP)	663
IPv4 VRRP Commands	663
Debugging and Diagnostics	675
Offline Diagnostic Commands	675
Important Points to Remember	675
Buffer Tuning Commands	677
Hardware Commands	682
Internet Control Message Protocol (ICMP) Message Types	695
SNMP Traps	697
Index	701

Match case Limit results 1 per page

622

Spanning Tree Protocol (STP)

www.dell.com | support.dell.com

Command

History

debug spanning-tree

Enable debugging of the spanning tree protocol and view information on the protocol.

Syntax

debug spanning-tree

{

stp-id

[

all

bpdu

events

exceptions

] |

protocol

}

To disable debugging, use the

no debug spanning-tree

command.

Parameters

Command Modes

EXEC Privilege

Command

History

Usage

Information

When you enable

debug spanning-tree bpdu

for multiple interfaces, the software only sends

information on BPDUs for the last interface specified.

Commands

description

Enter a description of the spanning tree.

Syntax

description

{

description

}

To remove the description from the Spanning Tree, use the

no description

{

description

} command.

Parameters

Defaults

none

Command Modes

SPANNING TREE (The prompt is “conf-stp”.)

Command

History

Commands

Version 8.3.16.1

Introduced on MXL 10/40GbE Switch IO Module

stp-id

Enter zero (0). The switch supports one Spanning Tree group with a group ID of 0.

protocol

Enter the keyword for the type of STP to debug, either

mstp

pvst

, or

rstp

all

(OPTIONAL) Enter the keyword

all

to debug all spanning tree operations.

bpdu

(OPTIONAL) Enter the keyword

bpdu

to debug Bridge Protocol Data Units.

events

(OPTIONAL) Enter the keyword

events

to debug STP events.

Version 8.3.16.1

Introduced on MXL 10/40GbE Switch IO Module

portfast bpdufilter

default

Enters SPANNING TREE mode on the switch.

description

Enter a description to identify the Spanning Tree (80 characters maximum).

Version 8.3.16.1

Introduced on MXL 10/40GbE Switch IO Module

portfast bpdufilter default

Enters SPANNING TREE mode on the switch.